Can't create pool on MacOS

### Describe the bug

Using version aiopg="1.4.0", I can not execute example code from README.md.
```python
import asyncio
import aiopg

dsn = 'dbname=... user=... password=... host=... port=...'

async def go():
async with aiopg.create_pool(dsn) as pool:
async with pool.acquire() as conn:
async with conn.cursor() as cur:
await cur.execute("SELECT 1")
ret = []
async for row in cur:
ret.append(row)
assert ret == [(1,)]

loop = asyncio.get_event_loop()
loop.run_until_complete(go())
```

### To Reproduce

1. Copy example code from README.md
2. Run postgresql in Docker container
3. Run example code

### Expected behavior

Pool successfully creates and sql query executes

### Logs/tracebacks

```python-traceback
Traceback (most recent call last):
File "/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/asyncio/tasks.py", line 490, in wait_for
return fut.result()
^^^^^^^^^^^^
asyncio.exceptions.CancelledError

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
File "/Users/.../PycharmProjects/sandbox/main.py", line 20, in
loop.run_until_complete(go())
File "/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/asyncio/base_events.py", line 653, in run_until_complete
return future.result()
^^^^^^^^^^^^^^^
File "/Users/.../PycharmProjects/sandbox/main.py", line 9, in go
async with aiopg.create_pool(dsn) as pool:
File "/Users/.../Library/Caches/pypoetry/virtualenvs/sandbox-N2CgpaeM-py3.11/lib/python3.11/site-packages/aiopg/utils.py", line 82, in __aenter__
self._obj = await self._coro
^^^^^^^^^^^^^^^^
File "/Users/.../Library/Caches/pypoetry/virtualenvs/sandbox-N2CgpaeM-py3.11/lib/python3.11/site-packages/aiopg/pool.py", line 300, in from_pool_fill
await self._fill_free_pool(False)
File "/Users/.../Library/Caches/pypoetry/virtualenvs/sandbox-N2CgpaeM-py3.11/lib/python3.11/site-packages/aiopg/pool.py", line 336, in _fill_free_pool
conn = await connect(
^^^^^^^^^^^^^^
File "/Users/.../Library/Caches/pypoetry/virtualenvs/sandbox-N2CgpaeM-py3.11/lib/python3.11/site-packages/aiopg/connection.py", line 1225, in _connect
await self._poll(self._waiter, self._timeout) # type: ignore
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/Users/.../Library/Caches/pypoetry/virtualenvs/sandbox-N2CgpaeM-py3.11/lib/python3.11/site-packages/aiopg/connection.py", line 884, in _poll
raise exc
File "/Users/.../Library/Caches/pypoetry/virtualenvs/sandbox-N2CgpaeM-py3.11/lib/python3.11/site-packages/aiopg/connection.py", line 881, in _poll
await asyncio.wait_for(self._waiter, timeout)
File "/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/asyncio/tasks.py", line 492, in wait_for
raise exceptions.TimeoutError() from exc
TimeoutError
```

### Python Version

```console
$ python --version
Python 3.11.4
```

### aiopg Version

```console
$ python -m pip show aiopg
1.4.0
```

### OS

MacOS Apple M3 Pro Sonoma 14.6.1

### Additional context

* Docker version 27.3.1
* Postgres docker image version - postgres:14

### Code of Conduct

- [X] I agree to follow the aio-libs Code of Conduct